Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Ryan D. Clouser, DO

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1780650382

Dr. Ryan D. Clouser, DO is registered under Critical Care (Intensivists) in Manchester, New Hampshire. Graduated from Philadelphia College of Osteopathic Medicine in 2002, 24 years ago. Practices with Elliot Professional Services, a 424-clinician group and accepts Medicare assignment. Licensed in New Hampshire and Vermont.

Years since qualifying
24
Trained at
Philadelphia College of Osteopathic Medicine
Licensed in
NH, VT
In the registry since
2006
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

1 Elliot Way
Manchester, NH 03103-3599
Phone: (603) 663-2204
Fax: (603) 663-2888
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence 032.0079938 (VT)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence 13485 (NH)

Record details

NPI number1780650382
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedFebruary 24, 2006
Last updated in NPPESFebruary 9, 2026
Certification dateFebruary 9, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCRITICAL CARE (INTENSIVISTS)
Medical schoolPHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2002 (24 years in practice)
Group practice Elliot Professional Services — 424 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients31
Services billed 44 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Elliot Professional Services

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 424 clinicians in the practice; 12 are shown here.

Other providers in Manchester